Alexandra Baburina, Tatyana Burtseva. SYSTEM OF RECOMMENDATIONS FOR FORMING THE PORTFOLIO OF SECURITIES ON THE RUSSIAN AND FOREIGN EXCHANGE MARKETS. RS Global - IJITE [Internet]. 2018Jul.1 [cited 2024Jul.22];2(6(18):31-5. Available from: https://rsglobal.pl/index.php/ijite/article/view/768